﻿    <p>
      This enumeration defines the valid types of chimneys that can be predefined using the enumeration values.
    </p>
    <blockquote class="history">
      HISTORY&nbsp; New enumeration in IFC4
    </blockquote>

    <blockquote class="note">NOTE&nbsp; Currently there are no specific enumerators
      defined, the <em>IfcChimneyTypeEnum</em> has been added
      for future extensions.
    </blockquote>